Pentane includes n-pentane and isopentane, both of which have the molecular formula C5H12 and a relative molecular mass of 72.15. Both substances are colorless and transparent liquids at room temperature with a faint aromatic odor. They do not contain olefins, mechanical impurities, or free water. The typical physical properties and technical indicators of n-pentan och isopentan visas i tabellerna 8-7 och 8-8, respektive .
Det högrenade n-pentanskumningsmedel som tillhandahålls av ZL har en renhet på upp till 99 . 5%och innehåller spårmängder n-butan (mindre än 0 . 01%) och isopentan (mindre än 0,2%), liksom en liten mängd C6-komponenter (mindre än 0,3%). Detta högrenade n-pentanskummande medel erhålls från lätta kolväten i oljefält genom effektiv destillationsseparation.
N-Pentane foaming agent has multiple uses. It can be used as a desorbent in the molecular sieve dewaxing process. After being blended with isopentane in different proportions, it can meet the needs of different foaming degrees and become an efficient foaming agent for expandable polystyrene. In addition, it can also be mixed with cyclopentane och liknande och används som ett polyuretanskummedel .
Isopentan har också ett brett utbud av applikationer . Det kan användas ensamt som ett skummande medel för expanderbar polystyren, eller blandad med cyklopentan för att bli ett skummande medel för styv polyuretan -skum . samtidigt, Isopentane kan också användas som ett DEASPHALENT SOLVENT OCH A CATALYT OCH EN CATALYT INTALE)
It should be noted that cyclopentane is flammable and explosive, and its explosion limit is between 1.4-8.0%, so it is listed as a Class A Class B fire protection object. It is also a volatile organic compound with an hourly volatilization volume of up to 8.5KG/square meter and a slight irritating odor. This requires that safety regulations must be strictly observed during production, transportation and storage to ensure the safety of equipment, plant and employees. At the same time, since cyclopentane has a certain low toxicity and deesterification function, it should be rinsed with clean water immediately when it comes into contact with the skin or splashes into the eyes. Once a leak occurs, measures should be taken quickly, such as dilution and dispersal with inert gaskväve.
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